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触屏查看大图（可以缩放）

分类: 文章 • 2023-12-21 19:51:34

1.less(如果需要less的，可以拿过去，如果不需要，只要引入css即可)

.pl_mainLi-RcImgList .pl_mainLi-RcImg:first-child{
   z-index: 1; 
}
.pl_mainLi-RcImg {
  width: 100%;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
}
.pl_mainLi-RcImgList {
  width: 4.7rem;
  height: 4.7rem;
  margin-top: 0.375rem;
  position: relative;
}

//查看原图弹窗
.pl_picPreview{
    position: fixed;
    top: 0;
    left: 0;
    z-index: 999;
    width: 100%;
    height: 100%;
    background-color: #333;

    .pl_picPreview__close {
        position: absolute;
        top: 20/40rem;
        right: 20/40rem;
        z-index: 2;
        width: 50/40rem;
        height: 50/40rem;
        background: url(data:image/png;base64,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) right top no-repeat;
        background-size: 40/40rem 40/40rem;
    }
}
.pl_picPreview__bd {
    height: 100%;

    .swiper-container {
        width: 100%;
        height: 100%;

        .swiper-slide {
            overflow: hidden;
            img {
                max-width: 100%;
                max-height: 100%;
            }
        }

        .swiper-pagination-fraction {
            top: 20/40rem;
            left: 50%;
            bottom: inherit;
            margin-left: -110/2/40rem;
            width: 110/40rem;
            height: 50/40rem;
            line-height: 50/40rem;
            font-size: 28/40rem;
            color: #f7f7f7;
            background-color: rgba(0,0,0,.5);
            border-radius: 50/40rem;
        }
    }
}

.hide {
    display: none !important;
}

2.编译后的css

.pl_mainLi-RcImgList .pl_mainLi-RcImg:first-child {
  z-index: 1;
}
.pl_mainLi-RcImg {
  width: 100%;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
}
.pl_mainLi-RcImgList {
  width: 4.7rem;
  height: 4.7rem;
  margin-top: 0.375rem;
  position: relative;
}
.pl_picPreview {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 999;
  width: 100%;
  height: 100%;
  background-color: #333;
}
.pl_picPreview .pl_picPreview__close {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  z-index: 2;
  width: 1.25rem;
  height: 1.25rem;
  background: url(data:image/png;base64,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) right top no-repeat;
  background-size: 1rem 1rem;
}
.pl_picPreview__bd {
  height: 100%;
}
.pl_picPreview__bd .swiper-container {
  width: 100%;
  height: 100%;
}
.pl_picPreview__bd .swiper-container .swiper-slide {
  overflow: hidden;
}
.pl_picPreview__bd .swiper-container .swiper-slide img {
  max-width: 100%;
  max-height: 100%;
}
.pl_picPreview__bd .swiper-container .swiper-pagination-fraction {
  top: 0.5rem;
  left: 50%;
  bottom: inherit;
  margin-left: -1.375rem;
  width: 2.75rem;
  height: 1.25rem;
  line-height: 1.25rem;
  font-size: 0.7rem;
  color: #f7f7f7;
  background-color: rgba(0, 0, 0, 0.5);
  border-radius: 1.25rem;
}
.hide {
  display: none !important;
}

3.html

<!DOCTYPE html>
<html>
	<head>
		<head>
		<meta http-equiv="Content-Type" content="text/html" charset="utf-8">
		<title>大图</title>
		<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no">
		<link rel="stylesheet" type="text/css" href="https://cdn.bootcss.com/Swiper/4.4.6/css/swiper.css"/>
		<link rel="stylesheet" type="text/css" href="css/1.css"/>
		<script type="text/javascript">
			(function(doc, win) {
				var docEl = doc.documentElement,
					resizeEvt = 'orientationchange' in window ? 'orientationchange' : 'resize',
					recalc = function() {
						var clientWidth = docEl.clientWidth;
						if(!clientWidth) return;
						if(clientWidth > 768) {
							docEl.style.fontSize = '40px';
							return;
						}
						docEl.style.fontSize = 20 * (clientWidth / 375) + 'px';
					};
				if(!doc.addEventListener) return;
				win.addEventListener(resizeEvt, recalc, false);
				doc.addEventListener('DOMContentLoaded', recalc, false);
			})(document, window);
		</script>
	</head>
	</head>
	<body>
		<div class="pl_mainLi-RcImgList">
			<img class="pl_mainLi-RcImg" src="http://demo.sc.chinaz.com/Files/DownLoad/webjs1/201801/jiaoben5647/img/5.jpg">
			<img class="pl_mainLi-RcImg" src="http://demo.sc.chinaz.com/Files/DownLoad/webjs1/201801/jiaoben5647/img/1.jpg">
			<img class="pl_mainLi-RcImg" src="http://demo.sc.chinaz.com/Files/DownLoad/webjs1/201801/jiaoben5647/img/2.jpg">
		</div>
		
		<!--查看大图-->
		<div class="pl_picPreview hide">
			<div class="pl_picPreview__close"></div>
			<div class="pl_picPreview__bd">
				<div class="swiper-container">
			        <div class="swiper-wrapper"></div>
			        <div class="swiper-pagination"></div>
			    </div>
			</div>
		</div>		
		<div class="swiper-slide swiper-slide-template hide">
        	<div class="swiper-zoom-container">
	          <img class="swiper-lazy" src="">
	        </div>
        </div>
		
		<script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.js" type="text/javascript" charset="utf-8"></script>
		<script src="https://cdn.bootcss.com/Swiper/4.4.6/js/swiper.js" type="text/javascript" charset="utf-8"></script>
		<script type="text/javascript">			
			/******查看大图******/
			var __preview = $('.pl_picPreview'),
			    __swiperWrap = $('.pl_picPreview .swiper-wrapper'),
			    __swiperPagination = $('.pl_picPreview .swiper-pagination'),
			    __swiper = new Swiper('.pl_picPreview .swiper-container', {
			        initialSlide: 0,
			        zoom: true,
			        pagination: {
				        el: '.swiper-pagination',
				        type: 'fraction'
				    }
			    });
			function pl_renderSwiper(imgArr,index) {
				__swiperWrap.html('');
				__swiperPagination.removeClass('hide');
				for (var i = 0; i < imgArr.length; i++) {
					var __temp = $('.swiper-slide-template').clone(true).removeClass('swiper-slide-template hide');
					__temp.find('.swiper-lazy').attr('src',imgArr[i]);
					__swiperWrap.append(__temp);
				}
	    		__preview.removeClass('hide');
                __swiper.slideTo(index, 1000, false);
	    		__swiper.update();
			}
			
			//关闭大图弹窗
			$('.pl_picPreview__close').click(function(){
				__preview.addClass('hide');
			});
			//列表大图
			$('.pl_mainLi-RcImgList img').click(function(){
				var imgArr = [],
				    _par = $(this).parents('.pl_mainLi-RcImgList'),
				    index = $(this).index();

				_par.find('img').each(function(){
					imgArr.push($(this).attr('src'));
				});
				pl_renderSwiper(imgArr,index);
			});
			
		</script>
	</body>
</html>

4.效果（在手机端可以缩放图片）

触屏查看大图（可以缩放）触屏查看大图（可以缩放）

 

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